#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define all(x) x.begin(),x.end()
typedef long long ll;
typedef pair<int,int> ii;
#define maxn 200005
vector<ii> v;
ll pfx[maxn],sfx[maxn];
vector<int> find_subset(int l,int u,vector<int> w){
int n=w.size();
for(int i=0;i<n;++i){
v.push_back({w[i],i});
}
sort(all(v));
for(int i=0;i<n;++i){
if(i!=0)pfx[i]=pfx[i-1];
pfx[i]+=v[i].fi;
}
for(int i=n-1;i>=0;--i){
sfx[i]=sfx[i+1]+v[i].fi;
}
for(int i=1;i<=n;++i){
if(pfx[i-1]<l&&sfx[n-i]<l)continue;
if(pfx[i-1]>u)return vector<int>(0);
for(int s=0;s+i-1<n;++s){
ll cur=pfx[s+i-1];
if(s!=0)cur-=pfx[s-1];
if(l<=cur&&cur<=u){
vector<int> ans;
for(int j=s;j<s+i;++j){
ans.push_back(v[j].se);
}
return ans;
}
}
}
return vector<int>(0);
}
